particular

Hi my friends, today I have a question for you, WHAT IS YOUR OPINION of this f-i ?
the language is catalan, and the meaning of the word FINNISIM in english is FINE in spanish is FINISIMO (more easy to traslate)
I attach the pic only of the word, and also attach the pic with the context of the text,
I was read a book, and can see this kind of ligature, very particular.